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The effect of water hammer on pressure increases in pipelines protected by an air vessel

Goran Gjetvaj ; Faculty of Civil Engineering, Kačićeva 26, 10000 Zagreb, Croatia
Martina Tadić   ORCID icon orcid.org/0000-0003-3127-535X ; Hidroprojekt-ing projektiranje d.o.o., Draškovićeva 35/I, 10000 Zagreb, Croatia

Puni tekst: engleski, pdf (2 MB) str. 479-484 preuzimanja: 2.708* citiraj
APA 6th Edition
Gjetvaj, G. i Tadić, M. (2014). The effect of water hammer on pressure increases in pipelines protected by an air vessel. Tehnički vjesnik, 21 (3), 479-484. Preuzeto s https://hrcak.srce.hr/123311
MLA 8th Edition
Gjetvaj, Goran i Martina Tadić. "The effect of water hammer on pressure increases in pipelines protected by an air vessel." Tehnički vjesnik, vol. 21, br. 3, 2014, str. 479-484. https://hrcak.srce.hr/123311. Citirano 28.10.2020.
Chicago 17th Edition
Gjetvaj, Goran i Martina Tadić. "The effect of water hammer on pressure increases in pipelines protected by an air vessel." Tehnički vjesnik 21, br. 3 (2014): 479-484. https://hrcak.srce.hr/123311
Harvard
Gjetvaj, G., i Tadić, M. (2014). 'The effect of water hammer on pressure increases in pipelines protected by an air vessel', Tehnički vjesnik, 21(3), str. 479-484. Preuzeto s: https://hrcak.srce.hr/123311 (Datum pristupa: 28.10.2020.)
Vancouver
Gjetvaj G, Tadić M. The effect of water hammer on pressure increases in pipelines protected by an air vessel. Tehnički vjesnik [Internet]. 2014 [pristupljeno 28.10.2020.];21(3):479-484. Dostupno na: https://hrcak.srce.hr/123311
IEEE
G. Gjetvaj i M. Tadić, "The effect of water hammer on pressure increases in pipelines protected by an air vessel", Tehnički vjesnik, vol.21, br. 3, str. 479-484, 2014. [Online]. Dostupno na: https://hrcak.srce.hr/123311. [Citirano: 28.10.2020.]
Puni tekst: hrvatski, pdf (2 MB) str. 479-484 preuzimanja: 1.682* citiraj
APA 6th Edition
Gjetvaj, G. i Tadić, M. (2014). Utjecaj vodnog udara na prirast tlaka u tlačnim sustavima štićenim zračnim kotlom. Tehnički vjesnik, 21 (3), 479-484. Preuzeto s https://hrcak.srce.hr/123311
MLA 8th Edition
Gjetvaj, Goran i Martina Tadić. "Utjecaj vodnog udara na prirast tlaka u tlačnim sustavima štićenim zračnim kotlom." Tehnički vjesnik, vol. 21, br. 3, 2014, str. 479-484. https://hrcak.srce.hr/123311. Citirano 28.10.2020.
Chicago 17th Edition
Gjetvaj, Goran i Martina Tadić. "Utjecaj vodnog udara na prirast tlaka u tlačnim sustavima štićenim zračnim kotlom." Tehnički vjesnik 21, br. 3 (2014): 479-484. https://hrcak.srce.hr/123311
Harvard
Gjetvaj, G., i Tadić, M. (2014). 'Utjecaj vodnog udara na prirast tlaka u tlačnim sustavima štićenim zračnim kotlom', Tehnički vjesnik, 21(3), str. 479-484. Preuzeto s: https://hrcak.srce.hr/123311 (Datum pristupa: 28.10.2020.)
Vancouver
Gjetvaj G, Tadić M. Utjecaj vodnog udara na prirast tlaka u tlačnim sustavima štićenim zračnim kotlom. Tehnički vjesnik [Internet]. 2014 [pristupljeno 28.10.2020.];21(3):479-484. Dostupno na: https://hrcak.srce.hr/123311
IEEE
G. Gjetvaj i M. Tadić, "Utjecaj vodnog udara na prirast tlaka u tlačnim sustavima štićenim zračnim kotlom", Tehnički vjesnik, vol.21, br. 3, str. 479-484, 2014. [Online]. Dostupno na: https://hrcak.srce.hr/123311. [Citirano: 28.10.2020.]

Sažetak
In the pipelines of water supply systems, the water hammer phenomenon often arises during rapid unsteady developments. Pipelines are mostly protected using an air vessel, which is designed by means of equations for oscillations of water mass. In this study, an analysis is made of the impact of pressure increases caused by water hammer on pressure variations in pipelines protected by an air vessel. The analysed unsteady (transient) developments occurred in a pressure system between the Ravnik pumping station and the Veliko Brdo reservoir, and thereby the measured pressure values were compared with values calculated with a numerical model. It was observed that although the air vessel converts kinetic energy into oscillations of water mass, part of the energy is transformed into elastic deformations of pipelines and into water compression. This study assesses the relationship of the conversion of kinetic energy into significant changes in pressure (phenomenon called water hammer), depending on the extent of the velocity change in time.

Ključne riječi
energy method; pipeline; water hammer

Hrčak ID: 123311

URI
https://hrcak.srce.hr/123311

[hrvatski]

Posjeta: 4.835 *